package com.heart.sell.controller.common;

import com.heart.sell.config.ProjectUrlConfig;
import com.heart.sell.enums.ResponseCodeEnum;
import com.heart.sell.exception.SellException;
import com.heart.sell.util.JsonUtil;
import lombok.extern.slf4j.Slf4j;
import me.chanjar.weixin.common.api.WxConsts;
import me.chanjar.weixin.common.exception.WxErrorException;
import me.chanjar.weixin.mp.api.WxMpService;
import me.chanjar.weixin.mp.bean.result.WxMpOAuth2AccessToken;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;

import java.net.URLEncoder;

/**
 * @author Luo Zhen
 * @create 2019-04-26 11:14
 */
@Controller
@RequestMapping("/wechat")
@Slf4j
public class WechatController {

    @Autowired
    private WxMpService wxMpService;
    @Autowired
    private WxMpService wxOpenService;
    @Autowired
    private ProjectUrlConfig projectUrlConfig;

    /**
     * 微信手机端 认证授权
     *
     * @param returnUrl
     * @return
     */
    @GetMapping("/authorize")
    public String authorize(@RequestParam("returuUrl") String returnUrl) {
        // 1. 配置 详见config包下面的类
        // 2. 调用方法
        String url = projectUrlConfig.getWechatMpAuthorize() + "/sell/wechat/userInfo";
        String redirectUrl = wxMpService.oauth2buildAuthorizationUrl(url, WxConsts.OAUTH2_SCOPE_USER_INFO, URLEncoder.encode(returnUrl));
        log.info("【微信网页授权】 获取code,result={}", redirectUrl);

        return "redirect:" + redirectUrl;
    }

    /**
     * 微信认证授权回调(微信服务器向第三方服务器发送的code 来拉取用户信息)
     *
     * @param code
     * @param returnUrl
     * @return
     */
    @GetMapping("/userInfo")
    public String userInfo(@RequestParam("code") String code,
                           @RequestParam("state") String returnUrl) {
        WxMpOAuth2AccessToken wxMpOAuth2AccessToken = new WxMpOAuth2AccessToken();
        try {
            wxMpOAuth2AccessToken = wxMpService.oauth2getAccessToken(code);
        } catch (WxErrorException e) {
            log.error("【微信网页授权】{}", e);
            throw new SellException(ResponseCodeEnum.WXCHAT_MP_ERROR.getCode(), e.getError().getErrorMsg());
        }
        String openId = wxMpOAuth2AccessToken.getOpenId();
        log.info("【微信网页授权】 获取openId={}", openId);
        return "redirect:" + returnUrl + "?openid=" + openId;
    }

    /**
     * 微信扫码登录
     * e
     *
     * @param returnUrl
     * @return
     */
    @GetMapping("/qrAuthorize")
    public String qrAuthorize(@RequestParam("returnUrl") String returnUrl) {
        String url = projectUrlConfig.getWechatOpenAuthorize() + "/sell/wechat/qrUserInfo";
        String redirectUrl = wxOpenService.buildQrConnectUrl(url, WxConsts.QRCONNECT_SCOPE_SNSAPI_LOGIN, URLEncoder.encode(returnUrl));
        String urlEncode = URLEncoder.encode(returnUrl);
        log.info("urlEncode={}", urlEncode);
        return "redirect:" + redirectUrl;
    }

    /**
     * 微信登录回调(微信服务器向第三方服务器发送的code 来拉取用户信息)
     *
     * @param code
     * @param returnUrl
     * @return
     */
    @GetMapping("/qrUserInfo")
    public ModelAndView qrUserInfo(@RequestParam("code") String code,
                                   @RequestParam("state") String returnUrl) {
        WxMpOAuth2AccessToken wxMpOAuth2AccessToken = new WxMpOAuth2AccessToken();
        try {
            wxMpOAuth2AccessToken = wxOpenService.oauth2getAccessToken(code);
        } catch (WxErrorException e) {
            log.error("【微信网页授权】{}", e);
            throw new SellException(ResponseCodeEnum.WXCHAT_MP_ERROR.getCode(), e.getError().getErrorMsg());
        }
        log.info("wxMpOAuth2AccessToken={}", JsonUtil.toJson(wxMpOAuth2AccessToken));
        String redirectUrl = projectUrlConfig.getSell() + "/sell/seller/login?openid=" + wxMpOAuth2AccessToken.getOpenId();
        return new ModelAndView("redirect:" + redirectUrl);
    }

}
